Atomic Theory
The Atomic Model Timeline
- The idea of what an atom is has changed over time.
- Different scientists and their discoveries have led to the development of the current model of an atom.
- Other examples include:
- The solar system (BIG made SMALL)
- The biological cell (SMALL made BIG)
The Democritus Model
- A Greek philosopher
- He conceived the idea of the atom to describe matter.
- Atom comes from the word atomos which means "indivisible".
- He believed that matter was finite (had a limit)
- He believed the smallest piece of matter was an indestructible and indivisible particle which he called the "atom".
The John Dalton Model
J.J. Thompson: The Plum Pudding Model
Read more about this topic: Outline Of Chemistry
Famous quotes containing the words atomic and/or theory:
“The pace of science forces the pace of technique. Theoretical physics forces atomic energy on us; the successful production of the fission bomb forces upon us the manufacture of the hydrogen bomb. We do not choose our problems, we do not choose our products; we are pushed, we are forced—by what? By a system which has no purpose and goal transcending it, and which makes man its appendix.”
—Erich Fromm (1900–1980)
“Freud was a hero. He descended to the “Underworld” and met there stark terrors. He carried with him his theory as a Medusa’s head which turned these terrors to stone.”
—R.D. (Ronald David)